Esempi in C++ (Cpp) per SCPI_ParamToChoice

Esempio n. 1

File: parser.c Progetto: RedPitaya/scpi-parser

/**
 * Read BOOL parameter (0,1,ON,OFF)
 * @param context
 * @param value
 * @param mandatory
 * @return
 */
scpi_bool_t SCPI_ParamBool(scpi_t * context, scpi_bool_t * value, scpi_bool_t mandatory) {
    scpi_bool_t result;
    scpi_parameter_t param;
    int32_t intval;

    scpi_choice_def_t bool_options[] = {
        {"OFF", 0},
        {"ON", 1},
        SCPI_CHOICE_LIST_END /* termination of option list */
    };

    if (!value) {
        SCPI_ErrorPush(context, SCPI_ERROR_SYSTEM_ERROR);
        return FALSE;
    }

    result = SCPI_Parameter(context, &param, mandatory);

    if (result) {
        if (param.type == SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA) {
            SCPI_ParamToInt32(context, &param, &intval);
            *value = intval ? TRUE : FALSE;
        } else {
            result = SCPI_ParamToChoice(context, &param, bool_options, &intval);
            if (result) {
                *value = intval ? TRUE : FALSE;
            }
        }
    }

    return result;
}

Esempio n. 2

File: parser.c Progetto: RedPitaya/scpi-parser

/**
 * Read value from list of options
 * @param context
 * @param options
 * @param value
 * @param mandatory
 * @return
 */
scpi_bool_t SCPI_ParamChoice(scpi_t * context, const scpi_choice_def_t * options, int32_t * value, scpi_bool_t mandatory) {
    scpi_bool_t result;
    scpi_parameter_t param;

    if (!options || !value) {
        SCPI_ErrorPush(context, SCPI_ERROR_SYSTEM_ERROR);
        return FALSE;
    }

    result = SCPI_Parameter(context, &param, mandatory);
    if (result) {
        result = SCPI_ParamToChoice(context, &param, options, value);
    }

    return result;
}

Esempio n. 3

File: units.c Progetto: zuban/scpi-parser

/**
 * Parse parameter as number, number with unit or special value (min, max, default, ...)
 * @param context
 * @param value return value
 * @param mandatory if the parameter is mandatory
 * @return 
 */
scpi_bool_t SCPI_ParamNumber(scpi_t * context, const scpi_choice_def_t * special, scpi_number_t * value, scpi_bool_t mandatory)
{
    scpi_token_t token;
    lex_state_t state;
    scpi_parameter_t param;
    scpi_bool_t result;
    int32_t tag;

    if (!value) {
        SCPI_ErrorPush(context, SCPI_ERROR_SYSTEM_ERROR);
        return FALSE;
    }

    result = SCPI_Parameter(context, &param, mandatory);

    if (!result) {
        return result;
    }

    state.buffer = param.ptr;
    state.pos = state.buffer;
    state.len = param.len;

    switch(param.type) {
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA:
        case SCPI_TOKEN_HEXNUM:
        case SCPI_TOKEN_OCTNUM:
        case SCPI_TOKEN_BINNUM:
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX:
        case SCPI_TOKEN_PROGRAM_MNEMONIC:
            value->unit = SCPI_UNIT_NONE;
            value->special = FALSE;
            result = TRUE;
            break;
    }

    switch(param.type) {
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA:
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX:
        case SCPI_TOKEN_PROGRAM_MNEMONIC:
            value->base = 10;
            break;
        case SCPI_TOKEN_BINNUM:
            value->base = 2;
            break;
        case SCPI_TOKEN_HEXNUM:
            value->base = 16;
            break;
        case SCPI_TOKEN_OCTNUM:
            value->base = 8;
            break;
    }

    switch(param.type) {
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA:
            SCPI_ParamToDouble(context, &param, &(value->value));
            break;
        case SCPI_TOKEN_HEXNUM:
            SCPI_ParamToDouble(context, &param, &(value->value));
            break;
        case SCPI_TOKEN_OCTNUM:
            SCPI_ParamToDouble(context, &param, &(value->value));
            break;
        case SCPI_TOKEN_BINNUM:
            SCPI_ParamToDouble(context, &param, &(value->value));
            break;
        case SCPI_TOKEN_DECIMAL_NUMERIC_PROGRAM_DATA_WITH_SUFFIX:
            scpiLex_DecimalNumericProgramData(&state, &token);
            scpiLex_WhiteSpace(&state, &token);
            scpiLex_SuffixProgramData(&state, &token);

            SCPI_ParamToDouble(context, &param, &(value->value));

            result = transformNumber(context, token.ptr, token.len, value);
            break;
        case SCPI_TOKEN_PROGRAM_MNEMONIC:
            scpiLex_WhiteSpace(&state, &token);
            scpiLex_CharacterProgramData(&state, &token);

            /* convert string to special number type */
            SCPI_ParamToChoice(context, &token, special, &tag);

            value->special = TRUE;
            value->tag = tag;

            break;
        default:
            result = FALSE;
    }

    return result;
}